51 lines
1.1 KiB
JavaScript
51 lines
1.1 KiB
JavaScript
import readline from "readline";
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let initialized = false;
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let currentHandler = null;
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function ensureRawMode(enabled) {
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if (process.stdin.isTTY) {
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process.stdin.setRawMode(enabled);
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}
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}
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export function initKeypress() {
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// 清理所有keypress监听器
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process.stdin.removeAllListeners("keypress");
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currentHandler = null;
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// 初始化readline（只需一次）
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if (!initialized) {
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readline.emitKeypressEvents(process.stdin);
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initialized = true;
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}
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ensureRawMode(true);
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}
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export function onKey(handler) {
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// 清理旧的监听器
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process.stdin.removeAllListeners("keypress");
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currentHandler = handler;
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process.stdin.on("keypress", handler);
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}
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export function stopKeypress() {
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process.stdin.removeAllListeners("keypress");
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currentHandler = null;
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ensureRawMode(false);
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}
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export function waitForKey(message = "按任意键返回...", predicate = () => true) {
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return new Promise(resolve => {
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console.log("\n" + message);
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initKeypress();
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onKey((str, key) => {
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const pressed = key || {};
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if (!predicate(pressed)) return;
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stopKeypress();
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resolve(pressed);
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});
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});
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}
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